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Learning objective

On diagrams, recognize and explain the roles of the umbilical cord, placenta, amniotic sac, and amniotic fluid in fetal development.

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Cambridge IGCSE BiologyReproductionCore content

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Quick explanation

On diagrams, recognize and explain the roles of the umbilical cord, placenta, amniotic sac, and amniotic fluid in fetal development

  • This point belongs to Sexual reproduction in humans, especially Sexual reproduction in humans outcomes.
  • You need to be able to on diagrams, recognize and explain the roles of the umbilical cord, placenta, amniotic sac, and amniotic fluid in fetal development.
  • The key ideas to know are Identify and State.
  • Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.

Key concepts

IdentifyState

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Diagram Description

Diagram of fetal support structures

A diagram shows a fetus connected to the placenta by the umbilical cord, surrounded by the amniotic sac filled with amniotic fluid.

  1. a

    Identify the structure that connects the fetus to the placenta.

    Aim for approximately 1 distinct marking point.

    [1]
  2. b

    State one role of the amniotic fluid in fetal development.

    Aim for approximately 1 distinct marking point.

    [1]
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